$305/Case of 5000 screw caps with O-ring seals. Bio Plas screw caps special designed to use with BioPlas screw cap micro tubes. These cap with O-ring rubber seals. We also have screw caps without O-ringe rubber seals. We have a variety of colors in stock: natural/clear, blue, yellow, red, green, pink, black, orange, brown and purple. Free ground shipping on orders $200 and up.
The shipping cost for each item ordered is $9.50, but will be automatically waived at checkout on orders of $200 and up.
Amber, Black, Blue, Green, Natural/Clear, Orange, Pink, Purple, Red, Yellow